package com.gmu.handler;

import com.alibaba.fastjson.JSON;
import com.gmu.domain.ResResult;
import com.gmu.utils.WebUtils;
import org.springframework.http.HttpStatus;
import org.springframework.security.core.AuthenticationException;
import org.springframework.security.web.AuthenticationEntryPoint;
import org.springframework.stereotype.Component;

import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;

/**
 * 如果是认证过程中出现的异常会被封装成AuthenticationException然后调用AuthenticationEntryPoint 对象的方法去进行异常处理
 * 认证异常
 * @author 木鱼~
 * @version 1.0
 */
@Component
public class AuthenticationEntryPointImpl implements AuthenticationEntryPoint {
    @Override
    public void commence(HttpServletRequest request, HttpServletResponse response, AuthenticationException authException) {
        ResResult<?> result = new ResResult<>(HttpStatus.UNAUTHORIZED.value(), "用户认证失败，请重新登录");
        String json = JSON.toJSONString(result);
        //处理异常
        WebUtils.renderString(response,json);
    }
}
